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Submission #26327

# Submission time Handle Problem Language Result Execution time Memory
26327 2017-06-29T08:17:10 Z khsoo01 Raspad (COI17_raspad) C++11
100 / 100
 199 ms 87076 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef tuple<ll, ll,ll> tp;
const ll N = 100005, M = 55;

ll n, m, ans[N], par[M], b[2][M], cc, ic, uc, cnt;
char ipt[N][M];

vector<tp> qry[N];

void parse (char I[], ll B[]) {
	for(ll i=1;i<=m;i++) {
		if(I[i] == '1') {
			if(I[i-1] != '1') cc++;
			B[i] = cc;
		}
		else B[i] = 0;
	}
}

ll Find (ll P) {
	if(par[P] == P) return P;
	return par[P] = Find(par[P]);
}

void Union (ll A, ll B, vector<tp> &V) {
	A = Find(A); B = Find(B);
	if(A == B) return;
	if(A > B) swap(A, B);
	par[B] = A;
	cc--;
	if(A <= ic && B <= ic) {
		V.push_back(tp(A, B, cnt));
		cnt = 0;
	}
}

int main()
{
	scanf("%lld%lld",&n,&m);
	for(ll i=1;i<=n;i++) {
		scanf("%s",ipt[i]+1);
	}
	for(ll i=1;i<=n;i++) {
		cc = 0; cnt = 1;
		parse(ipt[i], b[1]);
		ans[i] = ans[i-1] + cc; ic = cc;
		if(i == 1) continue;
		parse(ipt[i-1], b[0]);
		ll lft = i-1; uc = cc - ic;
		for(ll j=1;j<=cc;j++) par[j] = j;
		for(ll j=1;j<=m;j++) {
			ll A = b[0][j], B = b[1][j];
			if(A && B) Union(A, B, qry[i]);
		}
		for(auto &T : qry[i-1]) {
			ll A, B, C; tie(A, B, C) = T;
			ans[i] += C * (cc - uc);
			uc--; lft -= C; cnt += C;
			Union(A+ic, B+ic, qry[i]);
		}
		ans[i] += lft * (cc - uc);
	}
	ll sum = 0;
	for(ll i=1;i<=n;i++) sum += ans[i];
	printf("%lld\n",sum);
}

Compilation message

raspad.cpp: In function 'int main()':
raspad.cpp:41:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&n,&m);
                         ^
raspad.cpp:43:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",ipt[i]+1);
                       ^

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 10516 KB Output is correct
2 Correct 0 ms 10516 KB Output is correct
3 Correct 0 ms 10516 KB Output is correct
4 Correct 0 ms 10516 KB Output is correct
5 Correct 0 ms 10516 KB Output is correct
6 Correct 0 ms 10516 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 10516 KB Output is correct
2 Correct 0 ms 10516 KB Output is correct
3 Correct 0 ms 10516 KB Output is correct
4 Correct 0 ms 10516 KB Output is correct
5 Correct 0 ms 10516 KB Output is correct
6 Correct 0 ms 10516 KB Output is correct
7 Correct 0 ms 10516 KB Output is correct
8 Correct 0 ms 10516 KB Output is correct
9 Correct 0 ms 10648 KB Output is correct
10 Correct 3 ms 10912 KB Output is correct
11 Correct 3 ms 10648 KB Output is correct
12 Correct 0 ms 10780 KB Output is correct
13 Correct 3 ms 10648 KB Output is correct

Subtask #3
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 10516 KB Output is correct
2 Correct 46 ms 10780 KB Output is correct
3 Correct 59 ms 15268 KB Output is correct
4 Correct 16 ms 10516 KB Output is correct
5 Correct 13 ms 10648 KB Output is correct
6 Correct 63 ms 12232 KB Output is correct
7 Correct 36 ms 20812 KB Output is correct
8 Correct 33 ms 12100 KB Output is correct

Subtask #4
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 10516 KB Output is correct
2 Correct 0 ms 10516 KB Output is correct
3 Correct 0 ms 10516 KB Output is correct
4 Correct 0 ms 10516 KB Output is correct
5 Correct 0 ms 10516 KB Output is correct
6 Correct 0 ms 10516 KB Output is correct
7 Correct 0 ms 10516 KB Output is correct
8 Correct 0 ms 10516 KB Output is correct
9 Correct 0 ms 10648 KB Output is correct
10 Correct 3 ms 10912 KB Output is correct
11 Correct 3 ms 10648 KB Output is correct
12 Correct 0 ms 10780 KB Output is correct
13 Correct 3 ms 10648 KB Output is correct
14 Correct 13 ms 10516 KB Output is correct
15 Correct 46 ms 10780 KB Output is correct
16 Correct 59 ms 15268 KB Output is correct
17 Correct 16 ms 10516 KB Output is correct
18 Correct 13 ms 10648 KB Output is correct
19 Correct 63 ms 12232 KB Output is correct
20 Correct 36 ms 20812 KB Output is correct
21 Correct 33 ms 12100 KB Output is correct
22 Correct 99 ms 12496 KB Output is correct
23 Correct 199 ms 33748 KB Output is correct
24 Correct 179 ms 37048 KB Output is correct
25 Correct 143 ms 12628 KB Output is correct
26 Correct 113 ms 49588 KB Output is correct
27 Correct 116 ms 15532 KB Output is correct
28 Correct 166 ms 29392 KB Output is correct
29 Correct 153 ms 15400 KB Output is correct
30 Correct 69 ms 10516 KB Output is correct
31 Correct 179 ms 87076 KB Output is correct
32 Correct 149 ms 48928 KB Output is correct
33 Correct 113 ms 21472 KB Output is correct
34 Correct 139 ms 24244 KB Output is correct